ChemistryScalar QuantityNCTB রসায়ন অধ্যায় ৬ (মোলের ধারণা ও রাসায়নিক গণনা)
Mole
Bengali: মোল•Pronunciation: মোল•Symbol: n
Standard Definition:
The SI base unit of amount of substance, containing exactly 6.02214076 x 10^23 elementary entities.
📐 Mathematical Equation, Units & Dimensions
Defining Mathematical Equation
Standard SI Unit
mol (mole)($mol$ (মোল))
Dimensional Analysis
CGS Unit
mol
📖 Physical Concept & Comprehensive Explanation
The mole bridges the microscopic world of atoms with macroscopic bench chemistry. Expressing molecular weight in grams gives 1 mole. At STP (0 deg C, 1 atm), one mole of any ideal gas occupies 22.4 liters.
🎯 High-Yield Revision Points
- ✓Avogadro's constant NA = 6.023 * 10^23 entities.
- ✓Standard molar volume at STP is 22.4 L/mol.
- ✓Unified mole formula: n = w/M = V/22.4 = N/NA.
Use Online Solver for Mole
Compute step-by-step solutions, verify formulas, and plot interactive diagrams on biggan.me.
❓ Frequently Asked Exam Questions (FAQ)
Common questions in board and competitive entrance examinations
Q1: What does 1 mole of water represent?
It represents 18 grams of water containing 6.023 * 10^23 H2O molecules, occupying 22.4 L as vapor at STP.